18. Other topics
18.1. Other Sessions
Beyond Classification – Managing Resources Sustainably
Sigurd Heiberg1, Per Blystad2, Kerstin Brinnen3, Charlotte Griffiths4, Tom Heldal5, Janne Hokka6, Erika Ingvald7, Kaj Lax7, Hannu Makkonen6 and Harikrishnan Tulsidas4
1Petronavit a.s and Petrad, 2Petronavit a.s., 3Svemin, 4UNECE, 5Geological Survey of Norway, 6Geological Survey of Finland, 7Geological Survey of Sweden
Successful resource management requires relevant information on the resource base, adequate framework conditions set by Governments and society and enterprising capacity, also termed integrative dynamic capabilities in the public, private and financial sectors. We begin by addressing how the United Nations Framework Classification for Resources (UNFC) is built to house resource inventories and the guidance provided for applying this to minerals in Finland, Norway and Sweden. The information is carried by the project, not the deposit. Focus is on the quantities that the project will yield in the form of sales and non-sales production and how much will be left in the subsoil. Inventories are constructed by categorising separately the economic and social conditions for development, their industrial status and the uncertainty with which the quantities are defined. The projects themselves carry other important management information such as time series of production, costs, labour etc. The classification is mapped (bridged) to other key classifications such as the CRIRSCO template, the SPE PRMS and the new Russian classification for oil and gas (RF2013). This facilitates the reporting of a UNFC inventory in these classifications.
Being a project based resource classification, the UNFC has been adapted not just to fossil energy and mineral resources, but also to renewable energy, including geothermal, and injection projects for CO2 storage and other purposes.
The presentation will open for a discussion on how best to develop guidance for the use of the UNFC in the Nordic region for the commodities it has been developed for.
DETERMINATION OF PALAEOPRODUCTIVITY USING CARBON QUALITY IN AN END MEMBER MIXING MODEL
Justin Fadipe1 and Maarten Felix1
1Department of Geoscience and Petroleum, Norwegian University of Science and Technology
To improve our understanding of the global carbon cycle as well as the impact of anthropogenic contributions to this cycle, it is important to understand the link between palaeoproductivity and the amount of carbon that is ultimately buried. There has been much debate regarding the fate of organic matter (OM) during its transition to the sea floor, and about the quantification of OM remineralisation and preservation within subaqueous sediments.
This study applies a kinetic model with the aim of quantifying the decay of organic matter in both the water column and during the early stages of sedimentation. Laboratory derived decay rate constants for different constituents of organic matter together with the duration required to settle through the water column, were used to produce a quantitative estimate of carbon flux to the sediment. The approach demonstrates its validity when compared to measured trap data from literature. In addition, a comparison between the modelled flux and empirical equations showed similar outputs for both. The model results also compared well with (more limited) measured sediment column data.
Estimating palaeoproductivity utilising the proposed kinetic model, necessitates the distinction of the relative contributions of marine and terrigenous sources to total organic carbon (TOC). Bulk geochemical measurements of TOC and hydrogen index (HI) are used in an end member mixing model, whereby the degraded marine end member values are obtained by applying the kinetic model. Application of the kinetic model to carbon quality provides reasonable estimations of degraded HI end-members.
Surface kinematics of sorted circles using Structure from Motion photogrammetry in Juvfonne and Juvasshøe
1Geografisk institutt, NTNU
Sorted circles are a form of periglacial patterned ground that are recognized by characteristic geometric shape. Sorted circles are believed to have an important function as a carbon reservoir in high latitudes.
This research project is looking at sorted circles close to Juvfonne and on Juvasshøe, Norway, using Structure from Motion photogrammetry (SfM). The aim of this study is to understand the changes of sorted circles during one melting season at two different locations. Changes in the circles will be traced by tracking features in the orthoimages.
Frequency-magnitude analysis for landslides in Sogn og Fjordane
Håvard Mongstad1, Graziella Devoli2 and Karianne S. Lilleøren1
1Department of Geosciences, University of Oslo/Norway, 2Hydrology Department, Norwegian Water Resources and Energy Directorate, Oslo/Norway
The county of Sogn og Fjordane in Norway has a climate and topography which makes it vulnerable for debris avalanches, debris flows and slush flows. The recently established landslide forecasting service at NVE (www.varsom.no) is able to predict their spatial and temporal occurrence. However, a better understanding of these processes, their spatial distribution, dimensions, mechanisms and dynamics is needed to improve the performance of the service, especially at local scale.
The main objective of the study is to investigate if the landslide warning for the county can be improved by considering the landslide magnitude. The analysis implies mapping of landslides and an analysis of meteorological and sedimentological conditions of which the events were triggered from. The analysis focus on landslides in soil (debris avalanches, debris flows, slush flows) from 2011 and throughout 2017. A sample from the landslide events will be visited in field to perform analysis on landslide volume, thickness of deposit and some other landslide parameters.
The study will also implement an analysis of the events that had a corresponding landslide warning level associated with it. A validation will then be performed to compare the predicted outcome with the resulting outcome of the meteorological event. This part of the master thesis might clarify challenges the landslide warning service has today. It may also enlighten improvements or adjustments that is needed to increase the landslide warning service accuracy.Top